Roundup's Trusted Auto Shop
From routine maintenance to complex repairs, we give your vehicle the honest care it needs to keep you moving safely down Montana's roads.
No surprises on your bill. Just straightforward auto repair done right the first time — the way your neighbors trust us to deliver.
What We Do
Whether it's your daily driver or weekend truck, we handle everything from oil changes to engine rebuilds with the same careful attention.
Check engine light on? We'll trace the problem fast with professional-grade diagnostics and explain exactly what's going on.
Regular oil changes, fluid flushes, and top-offs keep your engine running clean and extend the life of every component.
Squeaky, soft, or vibrating brakes? We inspect, repair, and replace brake pads, rotors, and fluid to keep you stopping safely.
Smooth shifts matter. We handle transmission fluid changes, repairs, and rebuilds for both automatic and manual vehicles.
Bumpy ride or wandering steering? We diagnose and fix shocks, struts, tie rods, and alignment issues for a smoother drive.
Battery, alternator, wiring — if it runs on electricity, we troubleshoot and repair it. No mystery fixes, just clear answers.
Montana summers get hot and winters get brutal. We keep your cabin comfortable year-round with full climate system service.
Buying a used car? We'll give you an honest, thorough inspection report so you know exactly what you're getting before you commit.
About Us
Green's AutoWorx isn't a chain — we're your neighbors. Located right off Highway 87S in Roundup, we've built our reputation one honest repair at a time. When you pull into our shop, you're not just another ticket number; you're someone we want to see again.
We treat every vehicle like it's our own — whether it's a daily commuter, a work truck, or a weekend project. That means we explain what's wrong in plain language, only recommend what you actually need, and stand behind every job we do.
Why Green's AutoWorx
We know what it's like to be stranded with a car you can't afford to lose. That's why we show up, do it right, and keep you informed every step of the way.
Most repairs are completed the same day so you're not left waiting — or without your vehicle — longer than necessary.
We explain exactly what's wrong, what it costs, and what can wait — so you can make decisions with confidence, not confusion.
We stand behind every repair. If something isn't right after our work, we'll make it right — that's our promise to you.
We're right here on Highway 87S. Your business means everything to us, and we treat every customer like a neighbor.
The best auto shops aren't built with fancy signage — they're built one satisfied customer at a time.
Get In Touch
Have a question or need to schedule a repair? Reach out however works best for you — we respond quickly.
Tell us about your vehicle and what you need — we'll get back to you as soon as we can.
Thanks for reaching out. We'll get back to you within 24 hours.